Method of splicing a tube and the product thereof



C. T. HAMPTON.

METHOD OF SPLlClNG A TUBE AND THE PRODUCT THERE.

APPLICATION FILED MAR. 10, 1919.

1,342,441 PatentedJune 8, 1920.

UNITED. sures "r creme.

CHARLES T. HAMPTON, 0F DES MOINES, IOWA;

METHOD OF SPLIGING A TUBE AND THE PRODUCT THEREOF.

Application filed March 10, 1919. Serial No. 281,605.

. composition inner tubes for vehicle tires.

My invention consists in the construction,

arrangement and combination of parts and the method of using them ashereinafter set forth, pointed out in my claims and illus trated by theaccompanying drawing, in

' which- Figure 1 is an elevation of an inner tube to which myimprovement is applied. Fig.

2 is an elevation of a portion of the same tube, on an enlarged scale,illustrating one step in my improvement in splicing. Fig. 3 is alongitudinal section through the wall of the tube and splice member, theparts being greatly exaggerated or magnified, showing the relation ofthe parts in the completed article. In Figs. 2 and 3 portions are brokenawayto economize space.

In the construction of the device as shown the numeral 10 designates asleeve, preferably made of vulcanized rubber, or other suitablesubstance or composition, flexible,

I is of a diameter adapting it to receive in its ends smoothly andoverlap end portions of an inner tube 11. Inner sleeves 12, 13, ofsimilar substance and character and alike in form and structure, but ofless diameter, with the sleeve 10, are mounted end to end and spacedapart within the sleeve 10, and

inner end portions 26, 27 of said inner sleeves are vulcanized orotherwise rigidly, and in homogeneous manner, secured to said sleeve 10.Outer end portions of the inner sleeves 12, 13 are free from the innerface of the sleeve 10 and the ends of said inner sleeves are skived orbeveled on the inside or outspecification of Letters Patent.

Patented June 8,

side, as desired, as at 16 1-7. The outer sur faces 18, 19 of the outerend portions of the nner sleeves 12, 13 (free from the inner surface ofthe sleeve 10) are coated with gum or adhesive substance adapted toreceive an-v other and further coatingas hereinafter set forth, and saidprimary and permanent coating is protected from contact with the 10extend materially beyond the outer ends I of the inner sleeve 12, 13 andthe inner faces 20, 21 thereof (free from the outer faces of the outerend portions of said inner sleeves) likewise are coated primarily andperma-' nently with a substanceadapted to receive a further coating ofliquid cement, and said faces 20, 21 are likewise protected byoVerlaysof fabric (not shown).

In carrying out my improved method and in the practical use of myimproved device,

a damaged tube 11 (such a tube as may'have,

been torn wholly, or -largely asunder) is placed alongside one of mydevices, (the ends of the sleeve 10 of the latter being turned back asshown in Fig. 2 and a portion of the tube 11 (including the fracture)corresponding in length with the space between the shoulders 14, 15, iscut away by transverse amputation on radial lines. The end portions ofthe tube 11 are then turned back and cleaned and buffed as to theirinner (temporarily outer) faces and'a coating of liquid cement isapplied thereto and permitted to air-dry. The fabric overlays areremoved from the outer ends 18, 19 of the spaced inner sleeves, and thesurfaces thus exposed are coated with liquid cement and allowed toair-dry. 7 Then the ends of the tube 11 are unrolled upon the endportions of the inner sleeves and pressed firmly there on. Then theouter faces 22, 23 of the end portions of the tube 11 are cleaned andbufl'ed and coated with liquid cement which is allowed to air-dry. Thenthe back-turned end portions 20, 21 of the sleeve 10 are uncovered byremoval of the fabric overlays therefrom, are treated to a coating ofliquid cement which is allowed to airdry, and, then, are unrolled uponthe outer surfaces 22, 23 of the end portionsof the tube 11 and arepressed firmly thereon. The result will be as illustrated in Fig. l, therela- The resultant spliceris of slightly greater diameter than the tube'11; but it does not Wrinkle, crimp, flute or gore the ends of the tube;hence it is efiicacious in making a repair.

I claim as my invention 1. A tube splice comprising an outer sleeve, aninner sleeve connected thereto,

throughout a portion only of its length, said sleeves being arranged forthe receptlon between portions thereof of the end of a tube, I

- tions only of their lengths to the outer faces of-said sleeves beinggum treated;

2. A tube splice'comprising' a sleeve, 1nner sleeves therein and placedend to end, the inner sleeves being secured throughout portions only oftheir lengths to the outer sleeve, the free portions of said sleevesbeing U gum-treated on adjacent faces.

3. A tube splice comprising an outer sleeve, inner sleeves therein andplaced end to end and spaced apart, the'inner sleeves being securedpermanently throughout portions only of their lengths to the outersleeve,

the free portions of said sleeves being gumtreated on adjacent faces.

4. A tube splice comprising an outer sleeve, inner sleeves therein andplaced end to end and spaced apart, the inner sleeves being securedpermanently throughout-portions only of their lengths to the outersleeve,

. the outer sleeve projecting at its ends beyond the outer ends of theinner sleeves, the free I outersleeve.

portions of said sleeves being gum-treated V on adjacent faces.

5. The method of splicing a tube, which consists in inserting innersleeves in end portions of said tube, and overlapping end portions of anouter sleeve 011 said end portions of said tube, adjacent faces of saidtube and sleeves being gumtreated, securing outer faces of said innersleeves to inner faces of said tube, and securing inner faces of saidouter sleeve to outer faces .of said tube.

6. A tube splice comprising a sleeve, inner sleeves therein and placedend to end, the inner sleeves being secured throughout porsleeve, thefree portions of said sleeves bemg gumtreated on ad acent faces,endportions of said sleeves belng beveled or skived.

'7; A tube splice comprising an outer sleeve, and inner sleeves thereinand placed end to end and spaced apart, the inner sleeves being securedpermanently throughout portions only of their lengths to the 8. A tubesplice comprising an outer sleeve and inner sleeves therein and placedend to end andspaced apart, the inner sleeves being secured permanentlythroughout portions only of their lengths to the outer sleeve, endportions of said sleeves be ing beveled or skived.

Signed at Des 'Moines, in the county of Polk and State of, Iovva'this7th day of March, 1919. I g r CHARLES T. HAMPTON'

